Conglomerates

Limestone conglomerate?

Volcano-sedimentary succession. Conglomerates, sandstones, with alternating epiclastic rocks, volcanic breccias, lacustrine limestones, with cherty levels and anthracite lenses, shales, with plants remains, sporomorphs and pollens, ostracods and amphibians. Upper Carboniferous. Moscovian, Kasimovian, Gzhelian.... (alternatively: Westphalian D (?) - Autunian.